Pneumatic tire



H. NICHOLSON.

PNEUMATIC TIRE,

APPLICATION FILED OCT. 6. 1916- RENEWED JUNE I6. 1919.

Patented Jail. 13, 192Q.

.Zn/venian' f MM "yw UNITED sTATEs PATENT v, oEEicE.

HERBERT NICHOLSON, OF CHICAGO, ILLINOIS.

PNEUMATIC TIRE.' i

Patented Jan. 13, 1920.

Application filed October 6, 1916, Serial No. A124,015. Renewed .Tune 16, 1915i. Serial No. 304.738.

i To vall wko'm it may concern:

Be it known that I, lHERBERT XioHoLsoN, a citizen of the United States of America, and a resident ofvCliicago, in the county of Cook, State of Illinois, have inventedI certain new yand useful Improvements in Pneumatic, Tires, of which the following is' a specification.

This invention relates to that class of attachments for pneumatic and like tires e' which are located inythe'crown thereof to render'the same puncture proof, wear re'- sisting and non-skidding. And the-present improvement has for its object to provide a simple and efficient structural formation and association of parts, whereby the aforesaid functions are attained without material interference with the normal resiliency of the tire, all as will hereinafter more fully appear.

In the accompanying drawings Figure l, is a transverse section of a pneumatic tire illustrating the general arrangement of parts in the pieseiit improvement.

Fig. :2, is a detail perspective view otl one unitof the vtireA attachment with t-lie parts inl a detached condition,

Fig. 3, is a similar -view illustrating a modified formation.

Similar reference numerals indicate like partsin the several views.

Referringto the drawings, l designates the usual outer ndia'rubber portion, and

-tion of the tire structure. ...improyement the inner member 3 1s formed 2 the inner combined canvas and India rubber portion of an ordinary pneumatic tire of the clencher type.

3, 4, designate sectional imier and outer annular members constitutin the tread porn the present with a transversely curved inner face or vvaIl and with flat side faces or walls in parallel relation to each other and in approximately right-angle relation to the `aforesaid inner face. The tread portion formed by the sections 3, 4, is embedded in the crown of the aforesaid resilient tire portion 1.

The annular members 3, i, are preferably connected 'together by an interengaging tongue and groove formation 5 of the contacting faces of said members, as shown in Figs. l and 2.

6 designates a boltor rivet passing transversely through said parts to fasten the same Y together in an interlocked condition.

T designates one of the pairs of circularly and laterally disposed anchor plates or sections by which the series of supporting sections 3 are anchored to the wall of the pneumatic. tire. In the present improvement the anchor plates T are pivotally connected to the support-ing sections 3 by hinge lconnections 8, as shown.v

9 designatesone of the pairs of circularly and laterally disposed sheaths or sections which are embedded in outer portion 1 of the tire wall, and are of a fiat U shape in cross-section as shown, adapted to receive the free end of an individua-l anchor plate 7 and permit a limited lateral sliding movementof the saine in actual use on rough roads.

Any suitable. niet-al or like tough and' durable materi'al` may be used in the 'formation 'laterally disposed slieaths of U-shape in cross-section and also embedded wholly within said crown and receiving the anchor plates.

Signed at Chicago, Illinois, this 2nd day of October, 1916.

HERBERT NICHOLSON. 

